Its the same technology from Zehus as in the Vellobike+, also single speed (why didn't Zehus put a cassette on their hub, not enough space in width ??).

Reviews of the Vellobike+ aren't very positive: either very short autonomy either very weak electric assist. The Zehus smart regen doesn't bring much.

The control from the smartphone seems also problematic: requires mobile internet, the smartphone is connected to the Zehus servers which are connected to the motor hub, there is no BTLE (or other) direct connection between the smartphone and the hub.

Its slow and in case of absence of mobile internet coverage (or Zehus servers down), no control anymore !